Knob



FIG. 1 is a top perspective view of a knob showing the new design.

FIG. 2 is a front elevation view of the design.

FIG. 3 is a right side elevation view of the design.

FIG. 4 is a rear elevation view of the design.

FIG. 5 is a top plan view of the design.

FIG. 6 is a left side elevation view of the design; and,

FIG. 7 is a bottom plan view of the design.

The broken line disclosure in the figures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a knob, as shown and described. 